could you please explain me what are conditional clauses with examples?
Follow the mentioned link to understand the concept of conditional sentences clearly:
Type 1. The open conditional statement :
This usually refers to a future event which is conditional on another future event.
The verb of the main clause is in the future tense with "will" (or sometimes another modal).
Instances:
If you eat too much, you'll get fatter.
You'll get fatter if you eat too much.
If everyone works fast, we'll finish in time.
We won't finish in time unless everyone works fast.
Type 2. The open hypothetical conditional statement:
This refers to a possible future situation which depends on on another possible future situation. The verb of the main clause uses the present conditional tense (would+ infinitive, or could+infinitive)
If you visited Scotland, you could see Edinburgh Castle.
Unless the directors increased sales, we'd have to close this shop.
Type 3. The unfulfilled hypothesis
This refers to a situation which an event might have taken place, but did not, because a condition was not fulfilled.
The verb of the main clause goes in the past conditional (would have + past participle).
You wouldn't have fallen over if there hadn't been a banana skin on the ground.
You'd have got fatter if you'd eaten too much.
If I had gone to London, I could have visited the British Museum.
4 Omission of "if", with inversion.
Sometimes, hypothetical conditional statements or unfulfilled hypothetical statements can be expressed omitting the word if.
When this happens the subject follows the auxiliary verb in the conditional clause
- If I had known, I'd never have gone there.